Chloe is about to go on a full on rant to you when she notices it's not coming from you. Your mother already has a diaper on and simply raises it up to show her daughter in the passenger seat who it was.
"Because we always take too dam long on these trips and we always have at least two accidents, we might as well all be diapered..."
There was a stunned science as you decied to relax, it feel nice to just let go in your pants, just like your mother. Chloe is absently losing it but that doesn't last long as the lingering smell soon becomes invisible for everyone.
The question is though will Chloe submit to a diapering at the next stop?